C++ (Cpp) gtk_tree_view_get_expander_columnの例

コード例 #1

ファイル: view_dir_tree.c プロジェクト: BestImageViewer/geeqie

static gboolean vdtree_clicked_on_expander(GtkTreeView *treeview, GtkTreePath *tpath,
				           GtkTreeViewColumn *column, gint x, gint y, gint *left_of_expander)
{
	gint depth;
	gint size;
	gint sep;
	gint exp_width;

	if (column != gtk_tree_view_get_expander_column(treeview)) return FALSE;

	gtk_widget_style_get(GTK_WIDGET(treeview), "expander-size", &size, "horizontal-separator", &sep, NULL);
	depth = gtk_tree_path_get_depth(tpath);

	exp_width = sep + size + sep;

	if (x <= depth * exp_width)
		{
		if (left_of_expander) *left_of_expander = !(x >= (depth - 1) * exp_width);
		return TRUE;
		}

	return FALSE;
}

コード例 #2

ファイル: treeview.c プロジェクト: Kermit/qtcurve

gboolean
qtcTreeViewCellIsLeftOfExpanderColumn(GtkTreeView *treeView,
                                      GtkTreeViewColumn *column)
{
    // check expander column
    GtkTreeViewColumn *expanderColumn =
        gtk_tree_view_get_expander_column(treeView);

    if (!expanderColumn || column == expanderColumn) {
        return false;
    } else {
        bool found = false;
        bool isLeft = false;
        // get all columns
        GList *columns = gtk_tree_view_get_columns(treeView);
        for (GList *child = columns;child;child = g_list_next(child)) {
            if (!GTK_IS_TREE_VIEW_COLUMN(child->data)) {
                continue;
            }
            GtkTreeViewColumn *childCol = GTK_TREE_VIEW_COLUMN(child->data);
            if (childCol == expanderColumn) {
                if (found) {
                    isLeft = true;
                }
            } else if (found) {
                break;
            } else if (column == childCol) {
                found = true;
            }
        }
        if (columns) {
            g_list_free(columns);
        }
        return isLeft;
    }
}